Our #1 broom for grain elevators Harper Broom#74 Supersweep.  
Sweeps heavy debris: oil dry, dirt/soil, wood scraps and nails
Effectively cleans semi-smooth and rough surfaces
For indoor/outdoor use under wet or dry conditions: job sites, fertilizer plants, grain elevators, patios, driveways and parking lots
Fiber: medium-stiff, solvent-resistant synthetic 
Trim Length: 3 1/8"
Head only.